(Shhh,don't tell my mother-in-law) But in theory it is possible for someone in America to leave their garage door open all night and leave their doors unlocked. In this theoretical situation, it is also possible that nothing bad happened as a result. The family was not murdered, no goods were stolen, everyone slept soundly and securely.
It is also possible, in theory of course, that the said family had a husband and a wife and that on this particular night the wife went to bed slightly upset at the theoretical husband. Perhaps, as she was walking up the stairs, thoughts were ringing in her head, "Don't let the sun go down on your anger, it can give the devil a foothold (Ephesians 4:26)." Of course, the thoughts were ignored as, "it's no big deal, we can deal with it in the morning." The situation was dealt with in the morning and it ended up being no big deal.
However, as the wife opened the door on the theoretical next morning and saw the garage door, wide open to the outside air the Holy Spirit began to speak, "Going to bed in your anger is like leaving your garage door wide open to the enemy. Just because the enemy, who steal, kills and destroys (John 10:10), didn't stop by that night it doesn't mean it is wise to leave your garage door wide open."
So perhaps this theoretical woman will stop by this blog and read posts like Movement and remember that it is worth choosing life in your marriage for the protection of your home and your family. Also, maybe she will remember to make sure the garage door is closed before going to bed.